<?php

namespace app\admin\controller;

use app\common\controller\Backend;
use fast\Random;
use think\Config;

/**
 * Ueditor 请求操作
 * @internal
 */
class Ueditor extends Backend
{
    
    protected $noNeedRight = ['*'];
    protected $layout = '';
    
    public function _initialize()
    {
        parent::_initialize();
        
        //设置过滤方法
        $this->request->filter(['strip_tags', 'htmlspecialchars']);
    }
    
    /**
     * 分发信息
     */
    public function index(){
        header("Content-Type: text/html; charset=utf-8");
        
        $action = $this->request->get('action');
        $result = [];
        
        switch ($action){
            case 'config':
                $result = config('ueditor');
                break;
            case 'upload':
                $data = $this->upload();
                
                if ($data) {
                    $url = url($data, '', false, true);
                    $url = str_replace('/index.php', '', $url);
                    $result = ['state' => 'SUCCESS','url' => $url];
                } else {
                    $result = ['state' => __('Upload Image Fail')];
                }
                
                break;
            default:
                $result = ['state'=> __('Params Error')];
                break;
        }
        
        echo json_encode($result, JSON_UNESCAPED_UNICODE);
    }    
    
    /**
     * 上传图片
     */
    public function upload()
    {
        Config::set('default_return_type', 'json');
        $file = $this->request->file('file');
        if (empty($file)) {
            $this->error(__('No file upload or server upload limit exceeded'));
        }
        
        //判断是否已经存在附件
        $sha1 = $file->hash();
        
        $upload = Config::get('upload');
        
        preg_match('/(\d+)(\w+)/', $upload['maxsize'], $matches);
        $type = strtolower($matches[2]);
        $typeDict = ['b' => 0, 'k' => 1, 'kb' => 1, 'm' => 2, 'mb' => 2, 'gb' => 3, 'g' => 3];
        $size = (int)$upload['maxsize'] * pow(1024, isset($typeDict[$type]) ? $typeDict[$type] : 0);
        $fileInfo = $file->getInfo();
        $suffix = strtolower(pathinfo($fileInfo['name'], PATHINFO_EXTENSION));
        $suffix = $suffix ? $suffix : 'file';
        
        $mimetypeArr = explode(',', strtolower($upload['mimetype']));
        $typeArr = explode('/', $fileInfo['type']);
        
        //验证文件后缀
        if ($upload['mimetype'] !== '*' &&
            (
                !in_array($suffix, $mimetypeArr)
                || (stripos($typeArr[0] . '/', $upload['mimetype']) !== false && (!in_array($fileInfo['type'], $mimetypeArr) && !in_array($typeArr[0] . '/*', $mimetypeArr)))
                )
            ) {
                $this->error(__('Uploaded file format is limited'));
            }
            $replaceArr = [
                '{year}'     => date("Y"),
                '{mon}'      => date("m"),
                '{day}'      => date("d"),
                '{hour}'     => date("H"),
                '{min}'      => date("i"),
                '{sec}'      => date("s"),
                '{time}'     => time(),
                '{random}'   => Random::alnum(16),
                '{random32}' => Random::alnum(32),
                '{filename}' => $suffix ? substr($fileInfo['name'], 0, strripos($fileInfo['name'], '.')) : $fileInfo['name'],
                '{suffix}'   => $suffix,
                '{.suffix}'  => $suffix ? '.' . $suffix : '',
                '{filemd5}'  => md5_file($fileInfo['tmp_name']),
            ];
            $savekey = $upload['savekey'];
            $savekey = str_replace(array_keys($replaceArr), array_values($replaceArr), $savekey);
            
            $uploadDir = substr($savekey, 0, strripos($savekey, '/') + 1);
            $fileName = substr($savekey, strripos($savekey, '/') + 1);
            
            $splInfo = $file->validate(['size' => $size])->move(ROOT_PATH . '/public' . $uploadDir, $fileName);
            if ($splInfo) {
                $imagewidth = $imageheight = 0;
                if (in_array($suffix, ['gif', 'jpg', 'jpeg', 'bmp', 'png', 'swf'])) {
                    $imgInfo = getimagesize($splInfo->getPathname());
                    $imagewidth = isset($imgInfo[0]) ? $imgInfo[0] : $imagewidth;
                    $imageheight = isset($imgInfo[1]) ? $imgInfo[1] : $imageheight;
                }
                $params = array(
                    'admin_id'    => (int)$this->auth->id,
                    'user_id'     => 0,
                    'filesize'    => $fileInfo['size'],
                    'imagewidth'  => $imagewidth,
                    'imageheight' => $imageheight,
                    'imagetype'   => $suffix,
                    'imageframes' => 0,
                    'mimetype'    => $fileInfo['type'],
                    'url'         => $uploadDir . $splInfo->getSaveName(),
                    'uploadtime'  => time(),
                    'storage'     => 'local',
                    'sha1'        => $sha1,
                );
                $attachment = model("attachment");
                $attachment->data(array_filter($params));
                $attachment->save();
                \think\Hook::listen("upload_after", $attachment);
                return $uploadDir . $splInfo->getSaveName();
            } 
            return false;
    }
    
    
    
}
